How to use swagger in node.js hapi framework

Swagger is the good and effective way to create documentation of your project. 

Step 1: Install hapi-swagger:

$ npm install hapi-swagger —save

Step 2: Add option after the creation of server object :

swaggerOptions = {  
        basePath: 'http://localhost:8000',  
        apiVersion: pack.version  
    };  
  
server.pack.register({  
        plugin: require('hapi-swagger'),  
        options: swaggerOptions  
    }, function (err) {  
    if (err) {  
        server.log(['error'], 'Plugin "hapi-swagger" load error: ' + err)  
    }else{  
        server.log(['start'], 'Swagger interface loaded')  
    }  
});

Step 3: Add details in api :

server.route({
 method : 'GET',
 path: '/fav' ,
 handler : function(req,res){
  res("Wow finally executed fav ")
 },
 config: {
  description: 'Add',
  tags: ['api'],
  notes: ['Adds together two numbers and return the result'],
  validate: {
   params: {
    a: joi.number()
      .required()
      .description('the first number'),

     b: joi.number()
      .required()
      .description('the second number')
   }
  }
 }
})

Step 4: Add swagger-ui :

Move “swagger-ui” folder from “/node_modules/hapi-swagger/public” to new folder “/static”

server.route({  
 method: 'GET',  
 path: '/{path*}',  
 handler: {  
 directory: { path: './static', listing: false, index: true }  
 }  
  
})

Step 5: Hit “localhost:8088/swaggerui/”

Step 6: Enter localhost:8088/docs” in search options.